Thanks to its clear design language, the MIRO blends harmoniously into its surroundings. The completely smooth surface harmonizes with the soft shapes: the edges are rounded and the intuitively operated buttons are also round (door opener plus 3 buttons for operating additional functions such as stairwell lighting, opening side entrances, internal communication). The ideal combination of quality and practicality.Product features: MIRO house phone Telephone with handset with 3 buttons and door opener button Volume control Call differentiationTechnical data:Compatible with system 2VOICESupply voltage: 36 - 48V DC (via bus) Dimensions: 90 x 200 x 52mm Plastic ABS whiteInstallation instructions:Note: